package com.albedo.java.common.core.util;

import com.albedo.java.common.core.constant.CommonConstants;
import org.springframework.boot.SpringApplication;

import java.util.HashMap;
import java.util.Map;

/**
 * Utility class to load a Spring profile to be used as default
 * when there is no {@code spring.profiles.active} set in the environment or as command line argument.
 * If the value is not available in {@code application.yml} then {@code dev} profile will be used as default.
 */
public final class DefaultProfileUtil {

	private static final String SPRING_PROFILE_DEFAULT = "spring.profiles.default";

	private DefaultProfileUtil() {
	}

	/**
	 * Set a default to use when no profile is configured.
	 *
	 * @param app the Spring application.
	 */
	public static void addDefaultProfile(SpringApplication app) {
		Map<String, Object> defProperties = new HashMap<>();
		/*
		 * The default profile to use when no other profiles are defined
		 * This cannot be set in the application.yml file.
		 * See https://github.com/spring-projects/spring-boot/issues/1219
		 */
		defProperties.put(SPRING_PROFILE_DEFAULT, CommonConstants.SPRING_PROFILE_DEVELOPMENT);
		app.setDefaultProperties(defProperties);
	}
}
